Form-rolling machine



Nov. 25, 1930. F. L. SNYDER FORM ROLLING MACHINE Filed Aug. 22, 1928 2 Sheets-Sheet 1 INVENTOR 3 FR ANK L. SNYDER ATTORN EY F. L. SNYDER ,782,483

FORM ROLLING MACHINE Filed Aug. 22, 1928 2 Sheets-Sheet 2 Nov. 25, 1930.

INVENFI'OR FRANK L SNYDER ATTONEY fOI'I D -IYOllTIIgiStIlPSCTE sheet material.

Patented Nov 1930 v M ED TATss FRANKL. SNYDER, or CLEVELAND, 'OHIOQJA'SSIGNOR mo a v or cLEvn AND; or Io, a oonronA'rIoN or omo f FORTE-ROLLING MAori INE v l Applicationifiled-August 22;1928L Seria1No 301,304.

This invention relates to machines for a One of the objects of this invention is to "construct a machine which may be adjusted to produce Another objectof this invention is to construct a rolling machine which will form an arcuate band of regular curvature from a strip of material which has been fabricated previous to the forming operation,

V Other objects will hereinafterappear,

1 of one of the rolling elements.

lustrated is designed forrolling automobile It comprises generally a frame understood from the description of one prac:

tical embodiment thereof, jillustrate d in the accompanying drawings in whichz Figure 1 is a side elevation ofan assembled rolling machine shown in conjunction with a work bench. a f

Figure 2 is a detailed view,-in perspective,

Figure 3 is an end elevationof the machine shown in Figure 1, and includes in dotted lines a partly formed piece of stock. 7 j a Figure 4 is a longitudinal section taken on line-H of Figure-3. a

Figure 5 is a transverse section on line 5,-5of Figure 4;.

Figure 6=is a detail view, tion, theplane of the section being indicated by the line -6 inFigure 5. 1

Referring to the drawing, the machine ilbrake bands. 7 member 10,a master roller 11, and a plurality of smaller idler rollers'12circumjacently disposed in relation to the form roller, and hav ing radial adjustment thereto. a

In detail the frame 10 embodies a flanged base13, apair of axially alined journal bearings 14, and a recessed end wall 15 which is adapted to receive and holdtherolling adjuncts. The end Wall 15 comprises a ver tically disposed web machined withanarcu annular bands of variable diampartially in sec- THE WHIT Mormrooi/rPA YQ; I

ate groove and a circumjacent bearing a pair of adjustableidler roller brackets 19.

Aswillibe seen in Figures Aland 5, the

oppositely extending "flanges 20 and 21, the

ledge 17 which contribute to the support :of'a

lfixed roller supporting bracket 18anjd a 55 bracket18is provided witha pair, of spaced formerbeing disposed within the groove16, l and the latter being supported upon the ledge a 17 interjacentthe wall 15 and afplate 22 affixed to the edge of the ledge. The bracket 18 isfurther secured to the frame by cap screws 23 which extend throughperforationsin the rear wall of the bracketinto threaded apertures formed in the wall 15.

the plate22. EtLQllf Of these" brackets isse cured in place by a capescrew 24 which, after The adjustable brackets 19 havethe same i jgeneral formation as the bracket 18, andare 1 .slidably' mounted upon the frame by means The invention itself will be more readily if insertion through a slot inthe rear wall '1 of the bracket, i'sturned intooneof a'plurality of threaded apertures 26 arcuately ara ranged in wall 15 for registration with the slot 25 of each bracket.

When it is desired to adjust o ne of the brackets 19,the cap-screw 24: is either loosened or removed, depending upon'whether or not 7 the adjustment is in excess to that permitted bythe slots 25. If it is found necessary to remove the cap-screw, it isreinserted within the aperture 26 registering with slot 25 after justment, e

7 The rolle'rsi12 are adjustably supported upon the brackets'18 and19 by means of slidably mounted saddle members 27. These saddle members, as clearlyshown in Figures 4 and 2, are provided with bosses 28which support the roller axles 29, and with tongues 30 which-slide withinguide grooves 31 formedin the sidewalls 32iand 33 of therespective i j V brackets. 'Adjustabilit'y of the saddles 27 and the associated rollers' 12 is obtained through the provision of a plurality of set-screws 34 a mounted in the base of eachbracket. The setscrews 34 bear against the bases of the saddle members, and may be manipulated to' cause either a vertical or a slight angular movement of saddle members and rollers.

The form roller 11 is keyed upon a driven shaft 35 journaled within the heretofore described bearings 14 and a pair of antifriction bearings 36 mounted in the upper end of a supporting bracket 37. The lower end of the bracket 37 is secured to the outer faces of roller brackets 18 and 19 by means of capscrews 38 which extend through perforations formed in the webs of the bracket 37 into threaded apertures formed in the roller brackets 18 and 19. The apertures for the screws 38 which secure the bracket 37 to the brackets 19 are elongated as shown in Figure 3, and permit the previous described adjustment of the brackets 19;

Attached to the'roller bracket 18 in close proximity to the roller 11, there is a guide plate 39 which accommodates the translation of the stock between the forming rollers. This plate is preferably provided with guide strips 40 and with spring-pressed plungers 41 which prevent reentrance of the stock between the rollers 11 and 12 after being formed. The plungers 41 are guided'at their lower ends by a plate 42 supported beneath the plate 39 by shouldered columns 43 (see Fig. 6).

In the practice of this invention, strips of sheet material are fed between the ClllVGl] roller 11 and the idler rollers 12, the latter of which have been adjusted to accommodate the stock and to effect the required distortional influence thereupon to form an annulus of the desired size. As will be readily apparent, the distortional influence can be altered by either a circumferential or radial adjustment of the rollers 12 with respect to the roller 11.

It is often" desirable to fabricate the stock previous to the forming operation, in which case, the difiiculty of rolling the stock into annuli or regular arcuatecurvature is greatly enhanced due to the tendency of the stock to bend only at apertured or otherwise weakened portions when subjected to distortional strain. In the machine herein disclosed, the stock after'initial distortion is held in close association with roller 11 by the circumferentially adjustable rollers 12. As a result, any irregularities of material size induced in the stock duringinitialdistortion are later removed by the adjacent surfaces of the roller 11 and the circumferentially adjustable roll- I ers 12.

While I have described the illustrated embodiment of my invention in some particularity, obviously many variations and modifications thereof will occur to those skilled in the sart to which this invention appertains, I do not, therefore, limit myself to the precise details shown and described, but claim as my invention all embodiments coming within the sco 3e of the appended claims.

W hat-I claim is:

1. In a form-rolling machine, a frame, a large roller journaled in said frame, a plurality of members slidably mounted upon said frame for adjustment in arcuate paths tie with said large roller, means for v securing said members to said frame, all rollers mounted on said members adapto cooperate with said large roller to form took, and means carried by said members Fa justing'said small rollers radially with 'r'es 'mctto said large roller.

2. In a form-rolling machine, the combination of a plurality of rollers which cooperate to form the stock, and movable means normally obstructing the entrance to the passage between said rollers, and preventing the reentrance of the stock between said rollers after being formed.

3. In a form-rolling machine, a plurality ofrellers which cooperate to form the stock, a plate to guide the stock between said rollers, and yieldably mounted means associated with said plate normally obstructing the entrance to the passage between said rollers, and preventing there-entrance of the stock between said rollers after being formed.

4 In a form-rolling machine, the combination of a frame, a driven roller ournaled in said frame, a plurality of members slidably mounted upon said frame for movement in arcuate paths concentric with said driven roller, means for securing said members in adjusted positions about said driven roller, idler rollers mounted on said members adapted to cooperate with said driven roller to form the stock, and means carried by said members for adjustin said idler rollers radially with respect to said driven roller.

5. In a form-rolling machine, the combination of a frame, a driven roller journaled in said frame, a plurality ofmembers slidably mounted upon said frame for movement in arcuate paths concentric with. said driven roller, means for securing said members in adjusted positions about said driven roller, idler rollers adapted to cooperate with said driven roller to form the stock, slidably mounted upon said membersfor radial movement with respect to said driven roller, and means for adjusting said idler rollers radially with respect to said driven roller.

6. In a formrolling machine, the combination of a frame, a driven roller journaled in said frame, a pluralit-y'ofmembers slidably mounted upon said frame for movement in arcuate paths concentric with said driven roller, means for securing said members in adjusted positions about said driven roller, idler rollers adapted to cooperate with said driven roller to form the stock, slidably mounted upon said members for movement toward and away from said driven roller, and adjustable means for supporting said rollers inadjusted positions with respect to said driven roller.

ll l

7, In a folio-rolling iiiachineQthe oombina tion of a. plurality of cooperating forming rollers comprising at drivenj roller; an idler yroller separately adjustable toward and away from said driven roller and about said driven s. In a form rouin machine, the oombin- V tion of a plurality of cooperating forming rollers comprising a driven roller, an idler roller adjustable towai'd and away from said driven roller, and aseoond idler roller-separately adjustable toward and away from said driven roller and about said driven roller.

t In testimony whereof Ihereunto aflix my signaturethis 1st day of August, 1928. i l FRANK SNYDER. 

